Embed chart as iframe

[mbarton]

Related to #33

Some customers may have challenges integrating a React component into their page. They might use a different framework like Angular, Vue, Svelte etc or they might be integrating into a traditional desktop fat client.

To help integration with these customers we could publish a build of the charts as a simple page. It would accept the props for the chart as a hash parameter (to avoid sending our static site the actual data) and then render the chart.

You could then integrate this directly into another web page as an iframe or render it using whatever web view the desktop client supports.

We should publish these pages versioned but also offer a "latest" option. That would have the nice benefit of allowing us to deploy updates to existing users, if the customer were ok with it.